Question

coal is used in place of wood charcoal in factories​

Answer 1

Answer:

Being far denser than wood, coal burns more steadily and longer. Coal stoves may need attention only twice a day at most, and they may burn more than two days before they need to be resupplied, depending on the stove. ... Anthracite coal generates 8 to 10 percent ash per ton - more than wood

Explanation:

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Answer 2

Explanation:

Charcoal is a lightweight black carbon residue produced by strongly heating wood (or other animal and plant materials) in minimal oxygen to remove all water and volatile constituents. In the traditional version of this pyrolysis process, called charcoal burning, the heat is supplied by burning part of the starting material itself, with a limited supply of oxygen. The material can also be heated in a closed retort.